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Software Engineer, X Chat - Cryptography

Xai

$180,000 - $440,000
Sep 25, 2025
Palo Alto, CA, US
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xAI is looking to create a transformative mobile chat experience for X Chat, focusing on intuitive, secure mobile apps that blend technical expertise with product sense to deliver user impact.

Requirements

  • Expert in Swift, Objective-C, Kotlin, or Java, with deep knowledge of mobile architectures.
  • Proficient in performance optimization for responsive, secure apps.
  • Experienced in designing and shipping intuitive mobile UIs with E2EE integration.
  • Skilled in concurrency (Coroutines, Flow) for real-time, encrypted messaging.
  • Built high-throughput API integrations (REST, GraphQL) with backend systems.
  • Capable of owning features end-to-end, from architecture to app store deployment, focusing on user value.
  • Deep expertise in iOS/Android ecosystems and tools (Xcode, Android Studio, Gradle).

Responsibilities

  • Craft delightful, secure mobile experiences for X Chat on iOS/Android.
  • Obsess over performance and UI, ensuring seamless, encrypted interactions.
  • Drive technical and product decisions, collaborating with designers and engineers.
  • Deploy innovative, secure features globally, maximizing user impact.

Other

  • All employees are expected to be hands-on and to contribute directly to the company’s mission.
  • Leadership is given to those who show initiative and consistently deliver excellence.
  • Work ethic and strong prioritization skills are important.
  • All engineers are expected to have strong communication skills.
  • Candidates are expected to be located near the Bay Area or open to relocation.